#3148B2#3148B2

#3148B2 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.1% C 0.170 H 269.1°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#3148B2
RGB	rgb(49, 72, 178)
HSL	hsl(229, 57%, 45%)
HSV	hsv(229, 72%, 70%)
CMYK	cmyk(72.5%, 59.6%, 0%, 30.2%)
CIE-LAB	lab(35.01, 28.29, -58.95)
CIE-LCH	lch(35.01, 65.39, 295.63°)
OKLab	oklab(45.06% -0.0028 -0.1701)
OKLCH	oklch(45.06% 0.17 269.1)
XYZ	xyz(11.6171, 8.5009, 43.1394)
Luminance	0.0850 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3148B2 #B29B31

analogous

#3189B2 #3148B2 #5A31B2

triadic

#3148B2 #B23148 #48B231

tetradic

#3148B2 #B23189 #B29B31 #31B25A

square

#3148B2 #B23189 #B29B31 #31B25A

split-complementary

#3148B2 #B25A31 #89B231

monochromatic

#172152 #243582 #3148B2 #5168CF #8191DC

Accessibility & contrast

On white

7.78

#3148B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3148B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3148B2

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3148B2	#FFFFFF	#000000	##FFFFFF
##3148B2	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B6

Deuteranopia (green-blind)

#004DB0

Tritanopia (blue-blind)

#006376

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3148b2;
/* rgb */ color: rgb(49, 72, 178);
/* oklch */ color: oklch(45.1% 0.170 269.1);

Tailwind

colors: {
  custom: {
    50: '#7b7aca',
    500: '#3148b2',
    950: '#000000',
  },
}

SCSS

$custom: #3148b2;
$custom-light: #7b7aca;
$custom-dark: #000000;

JSON

{
  "hex": "#3148b2",
  "rgb": {
    "r": 49,
    "g": 72,
    "b": 178
  },
  "hsl": {
    "h": 229.302,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.45057,
    "c": 0.17012,
    "h": 269.1
  },
  "luminance": 0.08502
}

Semantic roles & 50–950 ramp

primary

#3148B2

secondary

#C5B879

accent

#C548E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3148B2

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →